--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.binding.impl;\r
+\r
+import java.lang.reflect.Constructor;\r
+import java.lang.reflect.InvocationTargetException;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.Datatypes;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.RecordBinding;\r
+import org.simantics.databoard.binding.error.BindingConstructionException;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.type.OptionalType;\r
+import org.simantics.databoard.type.RecordType;\r
+\r
+/**\r
+ * This class Binds throwables to the following record: \r
+ * { detailMessage : Optional(String) }\r
+ * \r
+ * The bound throwable class must have constructor( String ).\r
+ *\r
+ * @author toni.kalajainen\r
+ */\r
+public class ThrowableBinding extends RecordBinding {\r
+\r
+ private Class<Throwable> boundClass;\r
+ private Constructor<Throwable> constructor;\r
+ private Constructor<Throwable> constructorNoArgs;\r
+ \r
+ public ThrowableBinding( Class<Throwable> classToBindTo ) throws BindingConstructionException {\r
+ this.boundClass = classToBindTo;\r
+ type = new RecordType();\r
+ RecordType rt = (RecordType) type;\r
+ rt.addComponent("detailMessage", new OptionalType( Datatypes.STRING )); \r
+ this.componentBindings = new Binding[1];\r
+ this.componentBindings[0] = new OptionalBindingDefault( Bindings.STRING );\r
+ try {\r
+ constructor = boundClass.getConstructor( String.class );\r
+ constructor.setAccessible( true );\r
+ } catch (SecurityException e) {\r
+ throw new BindingConstructionException( e );\r
+ } catch (NoSuchMethodException e) {\r
+ throw new BindingConstructionException( e );\r
+ }\r
+ \r
+ try {\r
+ constructorNoArgs = boundClass.getConstructor();\r
+ constructorNoArgs.setAccessible( true );\r
+ } catch (SecurityException e) {\r
+ } catch (NoSuchMethodException e) {\r
+ }\r
+ \r
+ }\r
+\r
+ @Override\r
+ public Object getComponent(Object obj, int index) throws BindingException {\r
+ if ( index != 0 ) throw new BindingException("Index out of range");\r
+ if ( obj instanceof Throwable == false ) throw new BindingException("not Throwable");\r
+ Throwable t = (Throwable) obj;\r
+ return t.getMessage();\r
+ }\r
+\r
+ @Override\r
+ public Object create(Object... values) throws BindingException {\r
+ if (values.length!=1) throw new BindingException("Invalid argument");\r
+ try {\r
+ return constructor.newInstance( values );\r
+ } catch (IllegalArgumentException e) {\r
+ throw new BindingException( e ); \r
+ } catch (InstantiationException e) {\r
+ throw new BindingException( e ); \r
+ } catch (IllegalAccessException e) {\r
+ throw new BindingException( e ); \r
+ } catch (InvocationTargetException e) {\r
+ throw new BindingException( e ); \r
+ }\r
+ }\r
+\r
+ @Override\r
+ public Object createPartial() throws BindingException {\r
+ if ( constructorNoArgs!=null ) {\r
+ try {\r
+ return constructorNoArgs.newInstance();\r
+ } catch (IllegalArgumentException e) {\r
+ throw new BindingException( e );\r
+ } catch (InstantiationException e) {\r
+ throw new BindingException( e );\r
+ } catch (IllegalAccessException e) {\r
+ throw new BindingException( e );\r
+ } catch (InvocationTargetException e) {\r
+ throw new BindingException( e );\r
+ }\r
+ }\r
+ \r
+ try {\r
+ return constructor.newInstance((Object[]) null);\r
+ } catch (IllegalArgumentException e) {\r
+ throw new BindingException( e );\r
+ } catch (InstantiationException e) {\r
+ throw new BindingException( e );\r
+ } catch (IllegalAccessException e) {\r
+ throw new BindingException( e );\r
+ } catch (InvocationTargetException e) {\r
+ throw new BindingException( e );\r
+ }\r
+ }\r
+\r
+ @Override\r
+ public void setComponents(Object obj, Object... value)\r
+ throws BindingException {\r
+// if ( value.length != 1 ) throw new BindingException("Array out of range");\r
+// if ( obj instanceof Throwable == false ) throw new BindingException("not Throwable");\r
+// Throwable t = (Throwable) obj;\r
+ throw new BindingException("Cannot set message to Throwable");\r
+ }\r
+\r
+ @Override\r
+ public void setComponent(Object obj, int index, Object value)\r
+ throws BindingException {\r
+ throw new BindingException("Cannot set message to Throwable");\r
+ }\r
+\r
+ @Override\r
+ public boolean isInstance(Object obj) {\r
+ return obj instanceof Throwable;\r
+ }\r
+\r
+ @Override\r
+ protected boolean baseEquals(Object obj) {\r
+ ThrowableBinding o = (ThrowableBinding)obj;\r
+ return super.baseEquals(obj) && o.boundClass.equals(boundClass);\r
+ }\r
+ \r
+ @Override\r
+ public int baseHashCode() {\r
+ return super.baseHashCode() + 13 * boundClass.hashCode();\r
+ }\r
+}\r